Blower or pump.



No. 672,803. Patented Apr. 23, mm; E.'A. ossonnz.

BLOWER 0R PUMP. I

[Application flied Dec. 19. 1900: (No'ModeL) 2 Shaets-8he0t I.

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Patented Apr. 23, IQOI.

E. A. OSBORNE.

BLOWER OR PUMP.

(Application filed Dec. 19, 1900.

2 SheetsShee-t 2.

( N0 Model.)

1N: NORRIS PETERS ca. momma. wmmmou. n v c,

UNITED STATES 7 ATENT FFICE.

E-eBERT ALBION OSBORNE, OF FORT SMITH, ARKANSAS.

BLOWER OR PUMP.

SPECIFICATION forming part of Letters Patent No. 672,803, dated April23, 1901.

' Application filed December 19,1900. Serial No. 40,431. (No model.)

To all whom it may concern:

Be it known that I, EGBERT ALBION Os- BORNE, acitizen of the UnitedStates, residing at Fort Smith, in the county of Sebastian and State ofArkansas, have invented a new and useful Blower or Pump, of which thefollowing is a specification.

This invention relates to blowers or pumps, and has for its object toprovide a rotary device which is capable of operation upon any fluid,being provided with suction devices for drawing the fluid into the bodyor shell of the device, associated with means whereby a vortex is formedwithin the body and a column of fluid forced with considerablepressureoutward in a line substantially parallel with the line ofpassage of the fluid into the body of the device. Thedeviee when actingupon air or other elastic fluid serves to gather in the air from acomparatively large area and force the same outward again in acomparatively small column and at a speed proportionate to the rapidityof operation of the device. Substantially' the same operation isperformed and effect produced when operating in water or other liquid,in which case, however, a less rapid operation will sufflce.

The objects and advantages of the invention will appear more fully inthe course of the ensuing description.

The invention consists in a blower or pump embodying certain novelfeatures and details of construction and arrangement of parts, ashereinafter fully described, illustrated in the drawings, andincorporated in the claims.

In the accompanying drawings, Figure 1 is a side elevation of a bloweror pump constructed in accordance with the present invention, showingalso the operating-shaft therefor. Fig. 2 is a cross-section taken onthe line 2 2 of Fig. 3. Fig. 3 is a vertical diametrical section takenonthe line 3 30f Fig. 2. Fig. 4 is a detail view showing a segment ofasphere from which the blades of the device are produced. Fig. 5 is aplan view of one of the quadrants of the spherical segments, forming ablade. Fig. 6 is a detail view of one of the blades, showing the mannerof applying the same to the inner and outer shells of the device, theshells being indicated in dotted lines. Fig. 7 is a spherical projectionillustrating the extent and arrangement of the blades.

Similar numerals of reference designate corresponding pa rtsiu all thefigures of the drawings.

The blower or pump contemplated in this invention comprises,essentially, a dome or hemispherical outer shell 1, the lower end ofwhich is left open, except as hereinafter stated, and the top of whichis provided exteriorly with a reinforce 2, permitting the dome to befirmly united to a driving-shaft 3, which may be propelled in anyconvenient 'way and by any preferred motive power adapted to give therequisite speed of rotation to the dome or outer shell.

Within and beneath the dome 1 is a spherical inner shell 4, cut away atopposite ends to leave inlet and outlet orifices 5 and 6, respectively.The curvature of the inner shell 4 is concentric to the curvature of theouter shell 1, or approximately so, so that the outer surface of theinner shell is approximately equidistant at all points from the innersurface of the outer shell, as illustrated in Fig. 3.

A plurality of blades 7 are interposed between the outer and innershells and are connected permanently at their opposite or outer andinner edges to the dome 1 and inner shell 4, so that said blades arecarried around with and by the dome or outer shell and serve to impart,a like motion to the inner shell 4:.

Connected to the discharge end of the spherical inner shell 4 is ahemispherical extension or nozzle 8, having an opening in its upperportion coinciding with the outlet-orifice 6 of the shell 4, theopposite or discharge end of the extension or nozzle 8 being left opento form an expanded discharge mouth, from which the fluid being operatedupon is expelled. The extension or nozzle 8 is permanently secured tothe spherical inner shell in the relation shown in the drawings. It willthus be seen that all of the elements of the blower or pump are rigidlyconnected for simultaneous rotation.

Each of the blades 8 consists of a quadrangular section of a segment ofa sphere. Fig. 4 illustrates the segment of the sphere struckinclination, &c.

on the same radiusas the outer shell or dome 1. This hollow segment(indicated at 9) is cut into four equal parts, one of which isillustrated in Fig. 5, and which forms, as previously stated, one of theblades 7. One edge of each blade is permanently attached to the outersurface of the inner spherical shell 4 on an oblique as well as curvedline, as shown at 10 in Fig. 6, while the outer edge 11 of the blade ispermanently attached to the inner surface of the outer dome or shell 1.Practical 'tests have demonstratedthe fact that ordinarily twenty-fourof such blades will produce the best results when acting either on airor water or other elastic or inelastic It has also been found best to soproportion the outer-and ihner shells and arrange the blades that eachblade will-extend through seventy-five degrees of a circle, asillustrated in the diagram view, Fig. 7. Of course the number of bladesmay be varied at will, as well as their dimensions, angles of Thespecific construction andarrangement'above referred to, however, hasbeen found efficient, as thereby a vortex is formed in theconcentrating-chamber 12, included within the upper portion of the domeabove the suction-blades and inlet-orifice of the spherical inner shell.The blades 7 should be made of very thin material, such as sheet metal,and it is also advisable to construct the inner shell 4, thehemispherical extension or nozzle 8, and even the dome or outer shell ofsimilar material.

The operation of the device is as follows: The device as a whole isrotated with any desired degree of rapidity by means of the shaft 3. Thedevice rotates directly in the air or water or other fluid to beoperated upon, and such fluid is sucked into the interior of the dome bymeans of the rapidly-rotatin g blades 7.. In this manner a large numberof whirling currents of fluid are carried inward with considerable forceand, meeting within the concentrating-chamber 12, form a vortex and,combined, are projected in a column outward through the spherical innershell and expanded discharge-mouth of the hemispherical extension of theinner shell. Where it is desired to carry the fluid to any given point,a suitable conduit may be attached to the dis charge-nozzle. Where thedevice is to be used as a fan or blower for agitating air within anofflce, store, or room, the device needs nothing in the way of anattachment, as the air will be taken in through the open lower end ofthe dome 1 and expelled through the extension or enlargement 8 in amanner which will be readily understood. The inner spherical shell 4 andthe discharge-nozzle prevent the outgoing fluid from spreading to such adegree as to render it liable to be influenced by the ingoing current.It will thus be seen tal force tov gather in the fluid with which thedevice is surrounded and expel the same in a solid central column.

From the foregoing it is thought that the construction,operation,andmany advantages of the herein-described blower or pump will be readilyapparent to those skilled in the art without further description, and itwill be understood that various changes in the form, proportion, andminor details of construction may be resorted to without departing fromthe principle or sacrificing any of the advantages of this invention.-

Having thus described the invention, what is claimed as new, and desiredto be secured by Letters Patent, is

1. A rotary blower or pump comprising a concentrating-dome, a sphericalexhaust, and suction devices interposed between the dome and exhaust.

2. A rotary blower or pump comprising a concentrating-dorm e, aspherical exhaust, and suction devices connecting the dome and ex haust.

3. A rotary blower or pump comprising a concentrating-dome, anopen-ended spherical exhaust, and suction devices connecting the domeand the exhaust.

4:. A blower or pump comprising a rotary concentrating-dome, a sphericalexhaust arranged centrally thereof,.and suction devices connecting thedome and exhaust. I

5. A blower or pump comprising a rotary fluid-concentrating dome, aspherical exhaust arranged concentrically within the dome, and suctiondevices interposed between the dome and the exhaust.

6. A rotary blower or pump comprising a fluid-concentrating chamber, acentrally-arranged exhaust, and gathering blades arranged in a circlearound the exhaust, and at the entrance to the concentrating-chamber,all of said parts being connected to rotate together.

7. A rotary blower or pump comprising an open hemispherical outer shell,a spherical inner shell arranged centrally Within the opening of theouter shell, and suction devices interposed between the outer and innershells, and connecting the same for simultaneous rotation.

8. A blower or pump comprising a rotary fluid-concentratin g openhemispherical shell, suction devices in the open end of the shell, andan inner shell forming an exhaust arranged centrally of the suctiondevices.

9. A rotary blower or pump comprising an outer dome, an inner shellforming an exhaust, suction devices between the dome and inner shell,and a nozzle connected with the inner shell and havingan expandeddischarge-mouth.

10. A rotary blower or pump comprising an outer dome, a spherical innershell forming an exhaust, suction devices between the dome and the innershell, and a hemispherical ex- ITO tension of the inner shell forming adischarge mouth or nozzle.

11. The combination with the outer hemispherical shell, and thespherical inner shell, of suction blades interposed between said shellsand each consisting of a portion of a segment of a hollow sphere.

and an exhaust-nozzle communicating with the dome, all of said partsbeing connected to rotate together.

15. A rotary pump or blower comprising a fluid-concentrating dome, meansfor supplying fluid to the central portion of the interior of the dome,and an exhaust-nozzle for receiving the fluid from the central portionof the dome and directing the same outward, the dome and exhaust-nozzlebeing connected to rotate together.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

EGBERT ALBION OSBORNE.

Witnesses:

A. W. BOYD, O. S. SMART.

